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. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: Prev Med. 2020 May 7;137:106125. doi: 10.1016/j.ypmed.2020.106125

Table 3:

Comparison of policy elements implemented (in mean percentages ± sd) at posttest by experimental condition (completer analysis)

Implementation
Measure
Control Intervention Test
Statistic
(t)
p Cohen’s
d
Control Intervention Test
Statistic
(F)
p Cohen’s
d
Multiple Imputation
School Principals (n=118 in each imputation (n=60 Control
and n=58 Intervention), 5 imputations)1
Completer Analysis
School Principals (n=108 (n=55 Control and n=53
Intervention))1
UV index is monitored and outdoor activities are modified with regard to risk of harm associated with the index level 36.9% ± 9.4% 40.4% ± 9.1% −0.33 .74 .06 36.2% ± 9.2% 38.8% ± 8.9% 0.06 .81 .04
Students wear sun-protective clothing (shirts with sleeves; long pants) and sunglasses 22.7% ± 7.7% 45.5% ± 8.5% −2.11 .04 .46 22.2% ± 7.0% 46.4% ± 8.8% 5.40 .02 .48
Students wear hats when outdoors. 48.7% ± 10.4% 61.3% ± 9.5% −1.07 .29 .21 47.2% ± 9.9% 61.6% ± 9.4% 1.46 .23 .23
Students wear sunscreen when outdoors. 24.3% ± 9.2% 33.1% ± 10.4% −0.79 .43 .14 24.7% ± 9.2% 33.3% ± 10.7% 0.59 .44 .13
Construction of new schools or renovation of existing schools or school grounds include plans that increase shade on school grounds. 39.3% ± 9.4% 29.3% ± 8.4% 0.95 .34 −.16 39.6% ± 9.4% 28.8% ± 8.3% 1.02 .32 −.18
Educational objectives related to the health risks of sun exposure are taught in the classroom. 8.7% ± 5.5% 61.2% ± 12.7% −3.88 <.001 .89 7.2% ± 4.6% 63.3% ± 12.9% 19.32 <.0001 .97
In-service staff training and continuing education regarding sun safety is delivered to teachers. 14.8% ± 6.2% 40.9% ± 9.7% −2.54 .01 .54 14.0% ± 5.8% 40.5% ± 9.5% 7.63 <.01 .56
School communicates the district’s sun safety measures with parents and requests parent provision of sun safety resources, such as sunscreen and sun protective clothing for their child. 29.3% ± 9.7% 63.4% ± 10.3% −2.79 <.01 .56 27.6% ± 9.6% 66.0% ± 10.7% 9.86 <.01 .62
School provides sun protection resources, such as sunscreen or UV-protective clothing. 1.5% ± 1.9% 9.4% ± 5.6% −1.63 .10 .32 1.3% ± 1.5% 10.5% ± 6.5% 3.43 .07 .37
Staff is encouraged to model recommended sun-safe behaviors. 41.4% ± 10.3% 55.7% ± 9.7% −1.17 .25 .25 39.3% ± 9.9% 57.8% ± 10.0% 2.52 .12 .30
Multiple Imputation
Teachers (n=114 in each imputation (n=58 Control and
n=56 Intervention), 5 imputations)1
Completer Analysis
Teachers (n=97 (n=48 Control and n=49 Intervention))1
UV index is monitored and outdoor activities are modified with regard to risk of harm associated with the index level 17.3% ± 13.1% 24.8% ± 14.9% −0.92 .36 .19 13.8% ± 11.0% 23.9% ± 15.9% 1.75 .19 .25
Students wear sun-protective clothing (shirts with sleeves; long pants) and sunglasses 11.4% ± 8.7% 17.1% ± 11.1% −0.89 .38 .18 8.4% ± 7.1% 15.0% ± 11.1% 1.33 .26 .23
Students wear hats when outdoors. 17.7% ± 15.8% 23.4% ± 18.7% −0.78 .44 .15 14.7% ± 16.0% 21.4% ± 21.0% 0.89 .35 .19
Students wear sunscreen when outdoors. 10.3% ± 7.8% 7.4% ± 5.7% 0.68 .50 −.10 8.8% ± 7.4% 6.2% ± 5.2% 0.42 .52 −.11
Construction of new schools or renovation of existing schools or school grounds include plans that increase shade on school grounds. 10.3% ± 7.6% 16.4% ± 10.6% −1.07 .28 .20 9.0% ± 7.5% 15.6% ± 11.4% 1.39 .24 .23
Educational objectives related to the health risks of sun exposure are taught in the classroom. 9.5% ± 10.2% 12.2% ± 12.3% −0.47 .64 .09 7.9% ± 9.7% 10.8% ± 12.4% 0.28 .60 .11
In-service staff training and continuing education regarding sun safety is delivered to teachers. 3.8% ± 4.8% 15.2% ± 13.7% −2.27 .02 .53 1.6% ± 2.4% 11.9% ± 13.8% 6.26 .02 .69
School communicates the district’s sun safety measures with parents and requests parent provision of sun safety resources, such as sunscreen and sun protective clothing for their child. 11.9% ± 11.4% 20.7% ± 15.0% −1.21 .23 .26 9.5% ± 7.7% 19.7% ± 13.3% 2.28 .14 .32
School provides sun protection resources, such as sunscreen or UV-protective clothing. 2.8% ± 3.8% 7.7% ± 8.5% −1.20 .23 .36 0.1% ± 0.4% 2.7% ± 8.9% 2.26 .14 .43
Staff is encouraged to model recommended sun-safe behaviors. 33.9% ± 22.0% 59.6% ± 19.7% −2.08 .04 .47 33.1% ± 19.6% 67.6% ± 18.4% 7.24 <.01 .60
Multiple Imputation
Principals & Teachers Combined (n=232 in each imputation
(n=118 Control and n=114 Intervention), 5 imputations)1
Completer Analysis
Principals & Teachers Combined (n=205 (n=103 Control and
n=102 Intervention))1
UV index is monitored and outdoor activities are modified with regard to risk of harm associated with the index level 21.4% ± 12.6% 27.1% ± 14.1% −.92 .36 .14 20.9% ± 13.2% 27.7% ± 15.7% 1.20 .28 .16
Students wear sun-protective clothing (shirts with sleeves; long pants) and sunglasses 13.2% ± 10.5% 24.8% ± 16.3% −2.08 .04 .33 11.5% ± 8.2% 24.1% ± 14.3% 6.01 .02 .38
Students wear hats when outdoors. 24.5% ± 14.1% 32.1% ± 16.5% −1.29 .20 .18 22.9% ± 13.8% 31.8% ± 16.7% 2.12 .15 .22
Students wear sunscreen when outdoors. 13.3% ± 8.4% 14.7% ± 9.1% −.33 .74 .03 11.7% ± 8.4% 12.6% ± 8.7% 0.05 .83 .03
Construction of new schools or renovation of existing schools or school grounds include plans that increase shade on school grounds. 17.4% ± 10.2% 18.6% ± 10.6% −.25 .80 .03 16.7% ± 11.2% 17.6% ± 11.4% 0.03 .87 .02
Educational objectives related to the health risks of sun exposure are taught in the classroom. 8.7% ± 6.4% 24.8% ± 14.2% −3.26 <.01 .50 7.6% ± 8.8% 24.2% ± 22.4% 12.50 <.001 .55
In-service staff training and continuing education regarding sun safety is delivered to teachers. 6.4% ± 4.7% 20.4% ± 11.6% −3.23 <.01 .52 4.6% ± 3.7% 18.2% ± 11.9% 13.73 <.001 .58
School communicates the district’s sun safety measures with parents and requests parent provision of sun safety resources, such as sunscreen and sun protective clothing for their child. 13.6% ± 8.8% 30.2% ± 15.0% −2.85 <.01 .44 11.2% ± 12.3% 28.3% ± 24.7% 11.11 <.01 .51
School provides sun protection resources, such as sunscreen or UV-protective clothing. 1.6% ± 2.4% 6.1% ± 8.7% −2.01 <.05 .37 0.7% ± 1.0% 5.3% ± 6.3% 10.33 <.01 .42
Staff is encouraged to model recommended sun-safe behaviors. 44.0% ± 20.1% 61.3% ± 17.5% −2.19 .03 .34 47.1% ± 19.9% 68.3% ± 16.9% 6.65 .01 .41
1

Comparison was adjusted for whether respondent was assessed at pretest and posttest or was new in position at posttest, respondent phenotypic index, total number of students enrolled in school, percent of students in Free or Reduced Price Meals program, and percent of White not Hispanic students at school. Sample size is slightly reduced when covariates are added in the models.